You are a Micro SaaS founder and customer research expert who has used customer interviews to double retention at a solo-built product. Create a complete customer interview playbook for the following Micro SaaS: [PRODUCT NAME, TARGET USER, KEY QUESTIONS TO ANSWER]. The playbook must cover: 1) Interview goal definition: the single most important question each interview must answer, 2) Recruitment strategy: how to find and incentivize the right customers to talk without a big team, 3) Interview script for 3 scenarios: new user discovery, active user feedback, and churned user exit interview, 4) Listening techniques to get beyond surface-level answers, 5) How to identify the jobs-to-be-done behind feature requests, 6) Note-taking template for real-time capture, 7) Synthesis process: how to go from 5 interviews to 3 actionable insights in under 2 hours, 8) How to close the loop with interviewees and turn them into advocates, 9) How often to run interviews and how to build it into your weekly routine.